Clamping buckle



Jan. 21, 1936. L, TEINE 2,028,530

CLAMP ING BUCKLE Filed Aug. 25, 1954 v I n wen/or (9 E m/ML "2 A fforney Ill Patented Jan. 21, 1936 UNITED STATES PAT NT OFFICE CLAMPING BUCKLE Leo Steiner, Budapest, Hungary Application August 25, 1934, Serial No.

In Germany Sep 741,439 tember 8, 1933 4 Claims. (01. 24-194) as to preclude any accidental change in the operative length of the strap, will be easily loosened and moved to another position on the strap, when it is desired to increase or shorten the operative length of the strap. A buckle made in accordance with my invention may be loosened by a slight pressure between two fingers of one hand, and the same fingers may, at once, slide it into another position.

In order to preclude accidental displacement of a clamping buckle from its adjusted position on the from the strap, when it is desired to loosen the clamp, which operation requires considerable effort and results in a rapid wear and tear of the strap. When my buckle is loosened, the clamping member which bites into the strap is not forcibly torn away from the strap, but is released from any strain, before it is moved into another position on the strap.

In theaccompanying drawing, I have shown, by way of example, several embodiments of my invention as applied to suspenders.

Fig. 1 is a front elevation of, and Fig. 2 a longitudinal section through, one form of buckle. Fig. 3 which is a view similar to Fig. '1, and Fig. 4 which is a view similar to Fig. 2, show another form of buckle. Fig. 5 is a front elevation of, and Fig. 6 a longitudinal section through, a third form of buckle.

broken away in Fig. 8.

Like reference characters denote similar parts in the different forms of buckle illustrated in the drawing. 7

Referring first to Figs. 1 and 2 by characters of reference, I and 2 are the clamping members, the one I in the form of a sheath and the other 2 in the form of a wedge, between which one of the straps 3 of a-pair of suspenders is inserted and may be so clamped that the sharp or serrated edge 4 of the wedge member 2 bites into the material of the strap. The end of the strap 3 is passed through the loop 5 and then carried back to the sheath I and attached to a loop 6 formed on the lower end of the sheath I. The

loop 5 is subjected to the pulling action of the end-straps 7 to be buttoned to the front part of the top of the trousers (not shown).

The horizontal upper and lower edges of the inclined front wall of the sheath I are turned over so as to form a guide IS in which a slider 8 is movable crosswise to the longitudinal axis of the strap 3. A peg Ill on wedge member 2 projects through an aperture II in the front wall of sheath I and engages with an oblique slot 9 in the slider 8. When the sides of the buckle are taken between two fingers of one hand and pressure is exerted by the fingers in the direction of the arrows shown in Fig. 1 so that the projecting side of the slider 8 is inwards, the oblique walls of the slot 9 will cause the clamping members I and 2 to drive asunder from their tightened positions in which they are shown in Figs. 1 and 2. As the wedge member 2 bites with its sharp or serrated edge 4 into the strap, it will at first remain in position, and the sheath I being more easily movable will part from the wedge member 2 in upward direction, whereby the buckle loosens and may be slid without noticeable frictional resistance and by the same fingers, by the pressure of which the loosening has been effected, either in upward or in downward direction, according as it is desired to shorten or increase the operative length of re-adjusted position, the buckle will be automatically tightened again by the pulling action exerted by the loop 5 upon the sheath I.

The form of buckle shown in Figs. 3 and 4 distinguishes from that shown in Figs. 1 and 2 mainly in that two sliders 8, 8 are symmetrically arranged at opposite sides of the buckle, the oblique slots 9, 9 of which converge in upward direction so as to cooperate in one and the same sense. Moreover, a wire-spring I3 is so secured to a central peg I2 on the wedge member 2 as to press with its ends against the lower rim of the sheath I and thereby provoke re-tightening of the buckle irrespective of, or in conjunction with, the pulling action of the loop 5.

The form of buckle as shown in Figs. 5 to 8 distinguishes from that shown in Figs. 3 and 4 in that the sliders 8, 8 are each bent in the form of a U and their rear shanks I5, I5 are guided in the clamping member I, which forms a loop I 6 for this purpose, while their front shanks provided with the oblique slots 9, 9 cover part of the inclined front surface of the wedge member 2 so as to form, in conjunction with the member I, a sheath for the wedge member 2. The two pressed 1 5 sliders 8, 8 are forced asunder by a compression spring l'l inserted in the loop l6 between the rear shanks l5, l5. By the intermediary of the oblique slots 9, 9 and the pegs [0, ll], this spring l1 acts also upon the clamping members in such a manner as to provoke their retightening.

What I claim is:--

1. A buckle comprising a pair of clamping members adapted to clamp a strap between them, in combination with a member movable crosswise to the longitudinal axis of said strap and projecting sideways beyond said clamping members so as to be moved inwards by pressure exerted upon the opposite sides of the buckle between two fingers of one hand, and having such mechanical connection with both said clamping members that its inward movement causes the clamping members to drive asunder and its movement in the longitudinal direction of the strap is communicated to the clamping members.

2. A buckle as claimed in claim 1, having a pair of members movable crosswise to the longitudinal axis of the strap in symmetrical arrangement at opposite sides of the buckle.

3. A buckle comprising a pair of clamping members adapted to clamp a strap between them, a guide formed in one of said clamping members, a peg projecting from the other of said clamping members, a slider movable in said guide crosswise to'the longitudinal axis of said strap and projecting sideways beyond said clamping members so as to be moved inwards by pressure exerted between two fingers of one hand upon the opposite sides of the buckle, and an oblique slot formed in said slider so as to engage said peg and thereby cause the clamping members to drive asunder when the slider is moved inwards.

4. A buckle as claimed in claim 3, having a pair of sliders with a pair of slots, and a pair of pegs in symmetrical arrangement at opposite sides of the buckle.

LEO STEINER. 

